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Mystery Beneath the Ice

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Iceman Reborn

Iceman Reborn

Season 43 Episode 5
53:32
Can Alzheimer's Be Stopped?

Can Alzheimer's Be Stopped?

Season 43 Episode 8
52:51
Operation Lighthouse Rescue

Operation Lighthouse Rescue

Season 43 Episode 13
53:41
Bombing Hitler's Supergun

Bombing Hitler's Supergun

Season 43 Episode 14
53:49
School of the Future

School of the Future

Season 43 Episode 15
1:53:34
Ultimate Cruise Ship

Ultimate Cruise Ship

Season 44 Episode 4
53:09
Building Chernobyl's MegaTomb

Building Chernobyl's MegaTomb

Season 44 Episode 8
52:55
Chinese Chariot Revealed

Chinese Chariot Revealed

Season 44 Episode 9
53:46
Secrets of the Forbidden City

Secrets of the Forbidden City

Season 44 Episode 15
53:32
Killer Volcanoes

Killer Volcanoes

Season 44 Episode 16
54:10
Killer Hurricanes

Killer Hurricanes

Season 44 Episode 17
53:11
Killer Floods

Killer Floods

Season 44 Episode 18
54:10
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NOVA

Mystery Beneath the Ice

Season 43 Episode 3

Tiny, transparent, and threatened, krill are crucial to the Antarctic ecosystem. But the population of krill is crashing for reasons that continue to baffle the experts. A leading theory says that krill’s life cycle is driven by an internal body clock that responds to the waxing and waning of the Antarctic ice pack, but climate change alters the timing of the ice pack, disrupting their life cycle.

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